txt2json.py

#!/usr/bin/python

arr = []

def save(filename, contents):
    fh = open(filename, 'w')
    fh.write(contents)
    fh.close()

def readTxt():
    n = 0
    for line in open("Coupon_browns_face_1600.txt"):
        n = n + 1

        arr.append('\n    {"expired": false, "coupon": "' + line.replace('\r\n', '') + '"}')

        if (n == 800):
            save('coupon.json', '{"results":[' + ','.join(arr) + '\n]}')
            return

readTxt()